on THE FLORIDA ENTOMOLOGIST 
“BLACK LEAF 40” 
(Sulphate of Nicotine—40% of Nicotine) 
For liquid spraying against aphis, thrips, leaf-hoppers, 
etc. May be combined with other standard spray-chemicals. 
Always dependable and efficient. 
“Black Leaf 40” is, in Very Truth, “The Old Reliable” 
PRICES 
Set 0 gal 0 A eres Aetiea Sete ape eh, Cre Pe Re er hates, Sate $ 1.25 
Pll oFage 5 ba eee ete oe a pe amiec aN Sn I ae Ra a EN 3.50 
TEC ESN ote ba giao ae Oe ea sea Re eed ar toe 13.50 
“BLACK LEAF”-FI-NIGOTINE DUST 
Contains Over 114% of Actual (“Free’’) Nicotine 
Made from our own high-strength (“Free’’) Nicotine. 
Thoroughly standardized as to strength and texture. Rec- 
ommended for dusting vegetables to ‘destroy aphis. 
PRICES 
F. O. B. Richmond, Va. 
Belloie Gin esse te. ee eee eee eee ay AIRY) 
PATEAL Oe 4 [ORG Dd0 as emeee, Mees eens ph tee ae a 3.75 
BOS bs ri eae A eee ee eee 6.75 
TL OQElIbe: xO RUIN et eee ea ee eee PAGS) 
“BLAGK LEAF”- F NICOTINE DUST 
Contains Over 2% of Actual (“Free”) Nicotine 
Is stronger in nicotine than our—F1—Dust, but other- 
wise, is the same. Recommended against the more resistant 
insects, such as cucumber beetle, pea aphis, etc. 
PRICES 
F. O. B. Richmond, Va. 
Bey senb lke ee ee ee $ 1.30 
2521s ar he es ee pe rae ees 4.75 
GOI oy Stab eb ince cetat ee ee 8.75 
MOO basdrumM 2s eee 16.75 
“Black Leaf” products are sold by seedsmen, hardware 
stores, drum stores, general merchants, and dealers in hor- 
ticultural supplies. 
TOBACCO BY-PRODUCTS & CHEMICAL 
CORPORATION 
(Incorporated) 
LOUISVILLE, KENTUCKY 
